#include "Mystdio.h"
#include <unistd.h>
#define myfile "test.txt"

int main(){
    _FILE *fp = _fopen(myfile, "a");
    if(fp == NULL) return 1;

    const char *message = "hello world\n";

    int cnt = 10;
    while(cnt){
        _fwrite(fp, message, strlen(message));
        sleep(1);
        cnt--;
    }
    _fclose(fp);

    return 0;
}
